Enables neuropeptide receptor activity. Predicted to be involved in neuropeptide signaling pathway. Predicted to act upstream of or within G protein-coupled receptor signaling pathway. Located in cell surface and cytoplasm. Is expressed in several structures, including brain; fat cell; head; male organism; and pleuroperitoneal region. Human ortholog(s) of this gene implicated in central precocious puberty 1; hypogonadism; and hypogonadotropic hypogonadism 8 with or without anosmia. Orthologous to human KISS1R (KISS1 receptor).