G protein-coupled receptor for follitropin, the follicle- stimulating hormone (PubMed:11847099, PubMed:24058690, PubMed:24692546). Through cAMP production activates the downstream PI3K-AKT and ERK1/ERK2 signaling pathways (PubMed:24058690). {ECO:0000269|PubMed:11847099, ECO:0000269|PubMed:24058690, ECO:0000269|PubMed:24692546}. This is the function of FSHR (follicle stimulating hormone receptor, Ensembl gene identifier ENSG00000170820).