Stimulates feeding and grooming behavior, metabolic rate and locomotor activity and increases blood pressure. May have orexigenic activity. May promote aldosterone secretion by the adrenal gland. Ligand for the G-protein coupled receptor QRFPR/GPR103. Expressed in the brain with highest expression levels in the hypothalamus and optic nerve. Also expressed in the trachea and mammary gland. Belongs to the RFamide neuropeptide family.