It seems that Ubusunagami originally had a character different from the ujigami (a guardian god or spirit of a particular place in the Shinto religion) or the village shrine god, but it has often been similarly recognized since early-modern times.
もとは氏神や鎮守神とは別の性格を持っていたものと思われるが、近世以降は同一視される場合も少なくない。