Enables G protein-coupled peptide receptor activity. Acts upstream of or within G protein-coupled receptor signaling pathway; negative regulation of smooth muscle cell migration; and negative regulation of vascular associated smooth muscle cell proliferation. Predicted to be integral component of membrane. Predicted to be active in cytoplasm and plasma membrane. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 68. Orthologous to human S1PR2 (sphingosine-1-phosphate receptor 2). [provided by Alliance of Genome Resources, Apr 2022]