Predicted to enable neuropeptide receptor activity. Predicted to be involved in several processes, including positive regulation of ERK1 and ERK2 cascade; positive regulation of release of sequestered calcium ion into cytosol; and righting reflex. Predicted to act upstream of or within G protein-coupled receptor signaling pathway. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. Predicted to be active in cytoplasm. Predicted to be integral component of plasma membrane. Is expressed in brain and testis. Human ortholog(s) of this gene implicated in asthma; inflammatory bowel disease; newborn respiratory distress syndrome; and rheumatoid arthritis. Orthologous to human NPSR1 (neuropeptide S receptor 1). [provided by Alliance of Genome Resources, Apr 2022]