Religion is fundamentally about answering life's big existential questions - of meaning, of purpose, of relationships, and so on. Some religions do this within a theistic framework, while others don't.
What are the questions "god" or "gods" are the answer to?
This is not even a matter of definition, but really of expectations.
Roughly speaking, there are at least two main perspectives. One is based on establishing some premises and/or practices and allowing those to answer your question when it applies. And the other is, well, based on deciding that belief in god's existence ought to be the answer to any and all things as a matter of principle.
The former makes sense to me. The later doesn't really.
Perhaps it might also be interesting to answer the converse - what questions aren't they the answer to?
The way I see it, that is really a personal call, and perhaps even a work in progress at an individual level.
Ultimately, all of us have a personal responsibility for our own beliefs and, yes, disbeliefs, forms of belief and lacks of belief. Also and perhaps most of all for our religious understandings, religious goals and religious values as well.
What I personally understand to be true religion is a matter of considerable responsibility, not to be taken lightly.
(friendly reminder - this thread is in Interfaith Discussion)
Noted.