1. First function of religion out of its numerous functions is that religion serves as an integrative force.
This integrative function of religion was believed by Durkheim to be the primary function of religion. Here religion serves as a glue, integrative force that binds society together. It units people with similar beliefs and provides a sense of unity, while it also provides guidelines for moral order. It creates a cohesive society.
2. The second function is could be social control.
Frank E. Manuel was one of the people who saw that religion also serves a tool of social control. Many conservatives value religion because of this as it provides a certain kid of protective function. But others have noted that religion is used as tool to keep the masses under control and reinforce the existing social order and thus have criticized this function of religion.