Predicted to enable peptide binding activity and vasopressin receptor activity. Involved in multicellular organism aging and regulation of blood pressure. Acts upstream of or within regulation of systemic arterial blood pressure by vasopressin. Predicted to be located in Golgi apparatus and plasma membrane. Predicted to be integral component of plasma membrane. Is expressed in several structures, including alimentary system; brain; eye; genitourinary system; and immune system. Human ortholog(s) of this gene implicated in autism spectrum disorder; bipolar disorder; and mood disorder. Orthologous to human AVPR1B (arginine vasopressin receptor 1B). [provided by Alliance of Genome Resources, Apr 2022]