Receptor for lutropin-choriogonadotropic hormone. The activity of this receptor is mediated by G proteins which activate adenylate cyclase. Expressed in ovarian follicle granulosa cells (PubMed:9545511, PubMed:8828833). Expressed in ovarian follicle theca cells (PubMed:8828833). Expression levels are very low in 3-5mm, 6-8mm and 9-12mm ovarian follicles, but subsequently increase rapidly with high levels detected during F3, F2 and F1 preovulatory stages. Additional isoforms seem to exist. Belongs to the G-protein coupled receptor 1 family. FSH/LSH/TSH subfamily.