Depends what you call "god"
Do I believe in spirits?
Do I believe there are spirits that control the weather and nature and have influence on our lives?
-yes, but I believe even humans can do all of those
Do I believe in a single creator?
-Hmmm.. cant say that I do... rather I believe creation is a process, not a "spirit"
Do i believe in a final god who has the final say over everything that happens?
-kinda tough.. cause if there were such a one... there would be no free will
Do i believe in a divine force that influences us?
-yes, but again, that doesnt have to be a single god.. even my mother influences me, and I am sure many spirits do too
Do I believe in a unity of all things?
-I'm a scientist.. thats kind of obvious to me that everything is one
Do I believe in an afterlife?
-Well if i believe in spirits, I can certainly believe in an afterlife
Do i believe in prayer?
-yes, and I do invoke "spirits" when I do this
Basically, I guess you could say I believe the following: all of existence is essentially one... it exists as is, but we only think we are apart from each other because thats how we perceive things... in actuality, all the molecules in the universe are interchangeable.. essentially, we are all made of stars... however, at the level of consciousness, we still perceive all of us as different and separate beings... yet we can also be aware of one another, so perhaps there is a dichotomy between what is consciousness and what is material... the material world is not consciousness.. as I can replace all the molecules of my body, but I will still be the same person... yet my material is different.. thus they are not the same.... so as all material in the universe can be taken from a single "big bang".. I am guessing all of consciousness in the universe could also come from a single "source".. say we call this "Source".. but to define it is impossible... we cannot figure out what happened before the "big bang" as before this event, time and space are undefined... thus before all of consciousness split off from the "Source"... or you could say in other words, all spirits split off from "Spirit".. it doesnt matter what you call this, what ever all of existence and consciousness came from.. because at that point, existence itself is not defined... yet existence exists and must come from this final unity (perhaps).. yet in that final unity, there must also be un-unity.. as by being one, there must be more... so whatever that "more" is.. that which I cannot define, that which remains a mystery, lets call this "God" and then agree we can say nothing about it, because its undefineable...
Therefore, I also cannot "believe" in it.. since it is not defined... does that mean it is not there? Well, no, because it is beyond existence itself... it is beyond being...
But then you could also say.. say we combine existence with non-existence? Call them polar opposites? Two sides of the same coin? Like yin and yang? Then one would be "God" and the other "not-God"
But then we could redefine them both as together being "God" again...
And so ad infinitum... basically, it comes down to the idea, that God being the eternal, the infinite, the source of everything... it cannot be defined, because you keep on redefining it indefinitely.. so you can also not "believe" in it.. I think