Receptor for neuropeptide Y and peptide YY. The rank order of affinity of this receptor for pancreatic polypeptides is NPY = PYY >= NPY (2-36) = [Leu-31, Pro-34] NPY > NPY (13-36) > PP. The activity of this receptor is mediated by G proteins that inhibits adenylate cyclase activity. Kidney and discrete regions of the hypothalamus including the suprachiasmatic nucleus, anterior hypothalamus, bed nucleus stria terminalis, and the ventromedial nucleus. Expressed in embryo at 7 dpc. Belongs to the G-protein coupled receptor 1 family. Was originally called NPY5-R.