Enables endothelin receptor activity and type 1 angiotensin receptor binding activity. Involved in several processes, including blood vessel diameter maintenance; positive regulation of penile erection; and positive regulation of renal sodium excretion. Located in membrane raft; nuclear membrane; and plasma membrane. Used to study several diseases, including artery disease (multiple); lymphopenia; megacolon (multiple); portal hypertension; and type 2 diabetes mellitus. Biomarker of asthma; hepatopulmonary syndrome; and hypertension. Human ortholog(s) of this gene implicated in ABCD syndrome; Hirschsprung's disease; Waardenburg syndrome type 4A; Waardenburg's syndrome; and asthma. Orthologous to human EDNRB (endothelin receptor type B). [provided by Alliance of Genome Resources, Apr 2022]