Enables protein-hormone receptor activity. Acts upstream of or within adenylate cyclase-activating G protein-coupled receptor signaling pathway and male gonad development. Predicted to be located in plasma membrane. Predicted to be integral component of plasma membrane. Is expressed in several structures, including brain; genitourinary system; and peritoneum. Used to study cryptorchidism. Human ortholog(s) of this gene implicated in cryptorchidism. Orthologous to human RXFP2 (relaxin family peptide receptor 2). [provided by Alliance of Genome Resources, Apr 2022]