Enables identical protein binding activity and neuropeptide receptor activity. Acts upstream of or within phospholipase C-activating G protein-coupled receptor signaling pathway. Predicted to be integral component of plasma membrane. Is expressed in several structures, including eye; ileum; male reproductive gland or organ; and nervous system. Orthologous to human GPR139 (G protein-coupled receptor 139). [provided by Alliance of Genome Resources, Apr 2022]