Plays a role as a potent and selective agonist of PTH2R resulting in adenyl cyclase activation and intracellular calcium levels elevation. Induces protein kinase C beta activation, recruitment of beta-arrestin and PTH2R internalization. May inhibit cell proliferation via its action on PTH2R activation. Neuropeptide which may also have a role in spermatogenesis. May activate nociceptors and nociceptive circuits. {ECO:0000269|PubMed:11861531, ECO:0000269|PubMed:12559132, ECO:0000269|PubMed:12754053, ECO:0000269|PubMed:14988434}. This is the function of PTH2 (parathyroid hormone 2, ENSG00000142538).