Dopamine receptor whose activity is mediated by G proteins which inhibit adenylyl cyclase. Promotes cell proliferation (By similarity). Interacts with CLIC6 (PubMed:14499480). Interacts with GRK4. Interacts with PALM. Interacts with FLNA (via filamin repeat 21); increases PKA-mediated phosphorylation of FLNA (By similarity). Mainly in limbic areas of brain. Phosphorylated by GRK4. Palmitoylated. Belongs to the G-protein coupled receptor 1 family.