This vaguely reminds me of some idea of some collective unconscious mind. I guess one could call that god, but for the religious atheist labels like god shouldn't be important IMO but more as a convenient tool of language; a misnomer.
I'm partly composing this post in response to your religion being listed as "atheist still seeking religious experience" as I think it gives your topic a context.
IMO all it really takes is a skeptical attitude and a rejection of supernaturalism while (perhaps) sometimes accepting gods as useful symbols, masks, archetypes or labels. One might desire to be close to, or emulate these personifications but they will distinguish themselves from theists by their rejection of the belief in these personas as nonfictional. In my view gods exist, they are just fictional. But that doesn't lessen their power (if you are interested I can give a metaphor for this). .. but my advice would be to find out what is important to you... what you value, not just ethically but as something you just enjoy/value.
As far as some group consciousness, that might be considered god in some more new agey circles. It kind of reminds me of some misunderstandings of universal consciousness that exists in some forms of Hinduism. In that it isn't the sum of all consciousness but rather the eternal unchanging foundation of reality which is believed to be impersonal and pure consciousness. This view is pretty atheist-friendly as many atheist hindus will attest. But I wouldn't see that "god-like" universal property as "consciousness" although I think it would experienced like that.
That's all I can really say/make of this topic :/