Enables signaling receptor binding activity. Predicted to be involved in neuropeptide signaling pathway. Predicted to act upstream of or within G protein-coupled receptor signaling pathway. Located in ciliary membrane and non-motile cilium. Is expressed in several structures, including adrenal gland; brain; gallbladder; genitourinary system; and gut. Orthologous to human SSTR3 (somatostatin receptor 3). [provided by Alliance of Genome Resources, Apr 2022]