Enables vasoactive intestinal polypeptide receptor activity. Predicted to be involved in G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger and adenylate cyclase-modulating G protein-coupled receptor signaling pathway. Predicted to be integral component of membrane. Predicted to be part of receptor complex. Predicted to be active in plasma membrane. Human ortholog(s) of this gene implicated in achalasia. Orthologous to human VIPR1 (vasoactive intestinal peptide receptor 1). [provided by Alliance of Genome Resources, Apr 2022]