The function of ADGRD1 (adhesion G protein-coupled receptor D1, ENSG00000111452) is as follows. Adhesion G protein-coupled receptor (aGPCR) for androgen hormone 5alpha-dihydrotestosterone (5alpha-DHT), also named 17beta- hydroxy-5alpha-androstan-3-one, the most potent hormone among androgens (PubMed:39884271). Also activated by methenolone drug (PubMed:39884271). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of downstream effectors, such as adenylate cyclase (PubMed:39884271). ADGRD1 is coupled to G(s) G proteins and mediates activation of adenylate cyclase activity (PubMed:22025619, PubMed:22575658, PubMed:35447113, PubMed:39884271). Acts as a 5alpha- DHT receptor in muscle cells, thereby increasing intracellular cyclic AMP (cAMP) levels and enhancing muscle strength (PubMed:39884271). {ECO:0000269|PubMed:22025619, ECO:0000269|PubMed:22575658, ECO:0000269|PubMed:35447113, ECO:0000269|PubMed:39884271}.