[Neuropeptide RFRP-1]: Efficiently inhibits forskolin-induced production of cAMP. Acts as a potent negative regulator of gonadotropin synthesis and secretion (PubMed:11025660, PubMed:20027225). Induces secretion of prolactin (By similarity). {ECO:0000250|UniProtKB:Q9ESQ9, ECO:0000269|PubMed:11025660, ECO:0000269|PubMed:20027225}. [Neuropeptide NPVF]: Efficiently inhibits forskolin-induced production of cAMP. Blocks morphine-induced analgesia. . [Neuropeptide RFRP-2]: Shows no inhibitory activity of forskolin-induced production of cAMP. . This is the function of ENSG00000105954 (NPVF, neuropeptide VF precursor).