Enables G protein-coupled peptide receptor activity and peptide hormone binding activity. Involved in several processes, including cAMP-mediated signaling; learning or memory; and positive regulation of insulin secretion. Located in plasma membrane. Is integral component of plasma membrane. Used to study hyperglycemia and hypertension. Biomarker of obesity. Orthologous to human GLP1R (glucagon like peptide 1 receptor). [provided by Alliance of Genome Resources, Apr 2022]