G- protein coupled receptor activated by antipsychotics reserpine leading to an increase in intracellular cAMP and its internalization (By similarity). May play a role in locomotor activity through modulation of dopamine, NMDA and ADORA2A-induced locomotor activity. These behavioral changes are accompanied by modulation of the dopamine receptor signaling pathway in striatum (PubMed:24587241, PubMed:28583861). Modulates HTT level via cAMP-dependent but PKA independent mechanisms throught activation of RAB39B that translocates HTT to the endoplasmic reticulum, thus avoiding proteasome degradation (PubMed:25738228). Expressed in brain, especially in striatum (PubMed:24587241). Expressed in the striatum, nucleus accumbens, and lateral globus pallidus (PubMed:28583861). Gpr52 knockout mice are normal in body and brain weight. In the open field test, mice stay and move around the central zone significantly longer. The total distance traveled and brain morphology are normal. Mice are much more sensitive to the startle response following dizocilpine administration. Thus mice displayed psychosis-related behaviors (PubMed:24587241). Mice exhibit a significantly higher istradefylline-induced locomotor activity (PubMed:28583861). GPR52 is located within an intron of RABGAP1L gene, which exhibits epistatic effects on GPR52-mediated modulation of HTT levels by blocking this modulation. Belongs to the G-protein coupled receptor 1 family.