G-protein coupled receptor for glucagon-like peptide 1 (GLP-1) (PubMed:1326760, PubMed:7813606). Ligand binding triggers activation of a signaling cascade that leads to the activation of adenylyl cyclase and increased intracellular cAMP levels (PubMed:1326760, PubMed:7813606). Plays a role in regulating insulin secretion in response to GLP-1 (By similarity). May form homodimers and heterodimers with GIPR. Pancreatic islets, stomach, lung, rat insulinoma cell line. N-glycosylation enhances cell surface expression and lengthens receptor half-life by preventing degradation in the ER. Belongs to the G-protein coupled receptor 2 family.