The function of Ensembl gene identifier ENSG00000146469 (VIP, vasoactive intestinal peptide) is as follows. [Vasoactive intestinal peptide]: VIP is a neuropeptide involved in a diverse array of physiological processes through activating the PACAP subfamily of class B1 G protein-coupled receptors: VIP receptor 1 (VPR1) and VIP receptor 2 (VPR2) (PubMed:1318039, PubMed:36385145, PubMed:8933357). Abundantly expressed throughout the CNS and peripheral nervous systems where they primarily exert neuroprotective and immune modulatory roles (PubMed:3456568). Also causes vasodilation, lowers arterial blood pressure, stimulates myocardial contractility, increases glycogenolysis and relaxes the smooth muscle of trachea, stomach and gall bladder (PubMed:15013843). {ECO:0000269|PubMed:1318039, ECO:0000269|PubMed:15013843, ECO:0000269|PubMed:3456568, ECO:0000269|PubMed:36385145, ECO:0000269|PubMed:8933357}. [Intestinal peptide PHM-27]: Bioactive forms that cause vasodilation (PubMed:15013843, PubMed:3654650). PHM-27 is a potent agonist of the calcitonin receptor CALCR, with similar efficacy as calcitonin (PubMed:15013843). {ECO:0000269|PubMed:15013843, ECO:0000269|PubMed:3654650}. [Intestinal peptide PHV-42]: Bioactive forms that cause vasodilation (PubMed:15013843, PubMed:3654650). .