Can you be Christian if you don't believe in God?

Is there anything in Christian canon that stipulates a belief in God is required to call oneself a Christian? Like in Islam, the shahada (profession of faith in Allah), is required to call oneself a Muslim. A reason an atheist would want to participate in Christian social frameworks, as I understand it, is if they compartmentalize the foundational dogma/mythology, which they find false or contrary to evidence, and the actual effect that resulting institutions have had on society, which would be positive. In a way, it would be the opposite from a person who believes in god but dislikes organized religion, a person who affirms the value churches and their social impact have imparted on society despite the fiction of its foundational narratives. A pragmatic Christian.