Endogenous porcine galanin receptor agonist (pKi values are 9.63, 9.49, 9.02, 8.98, 8.01 and 8.14 at hGAL1, rGAL1, hGAL2, rGAL2, hGAL3 and rGAL3 respectively). Significantly increases food intake under free access conditions and also has roles in learning and memory, anxiety and sexual behavior.