Bv8,homolog of mouse Bv8 (Bombina variegata 8 kDa),homolog of mouse Bv8 (Bombina variegata 8 kDa), prokineticin 2,PK2,prokineticin 2 beta,prokineticin-2.
May function as an output molecule from the suprachiasmatic nucleus (SCN) that transmits behavioral circadian rhythm. May also function locally within the SCN to synchronize output. Potently contracts gastrointestinal (GI) smooth muscle (By similarity).