The theory of God?
No.. the theory that some intelligence was behind guiding evolution, etc. I guess you can call that "God" if you wish, I cannot say since I am unable to specifically define what "God" means.
What I beleive in regarding creation, I am unsure. But, I do know that in both camps I see unprovable (so far) ideas and beliefs being put forth as if they were fact (the essence of dogmatism). There are zealots who defend these ideas as if they were proven Truths. There are entire hierarchies arranged which reward and elevate those who conform to accepted belief, and scream heresy and try to destroy those who dare to speak any contradictory idea.
These are religions. One is the one we are all commonly envision when we think "religion". The other is a religion with men like Stephen Hawking as High Priest.