Enables A1 adenosine receptor binding activity; ATP binding activity; and G protein-coupled UTP receptor activity. Involved in several processes, including positive regulation of penile erection; regulation of cytosolic calcium ion concentration; and regulation of secretion by cell. Located in apical plasma membrane and basolateral plasma membrane. Is active in glutamatergic synapse. Is integral component of presynaptic active zone membrane. Colocalizes with early endosome; lysosome; and mitochondrion. Used to study impotence. Orthologous to human P2RY2 (purinergic receptor P2Y2). [provided by Alliance of Genome Resources, Apr 2022]