LOL it's such a silly question. Religion does not equal Conservatism.
Yup.
MineralMan comes to mind.
It does to the Left.
Without "endowed by their creator with certain inalienable rights" the fundamental demarcation between liberals (government at the whim of man) and conservatives (government based on laws which preceded man) is significantly blurred.
That being said, it is silly to assume that one needs anyone's permission to "be a conservative". I think the question has more to do with authenticity than permission.
I think that a large percentage of Conservatives are Conservative Christians....but as others have pointed out here.... world view doesn't always drive politics....but it usually does.