Probable G-protein coupled receptor implicated in a large repertoire of behavioral responses that engage motor activities, spatial learning, and emotional processing. May play a role in the regulation of cognitive and motor function. During cortical lamination, subcellular location shifts, on the day of birth, from expression at the plasma membrane and in the cytoplasm to the nuclei of neurons. This intranuclear localization remains throughout adulthood. Expressed predominantly in the striatum (PubMed:11056049). Expressed also in olfactory tubercle, nucleus accumbens, amygdala, and neocortex. Spinal cord, pons, and medulla expression remains discrete (PubMed:26918661). Also expressed in peripheral tissues, including adrenal cortex (E16-E21) and cochlear ganglia (E19-postnatal day 3(P3)) and also at moderate levels in retina (E18-E19) and spleen (E21-P7) (PubMed:26918661). Detected at embryonic day 16 (E16) in the striatum. From E16-E20 to adulthood, the highest expression levels of protein is observed in the striatum, olfactory tubercle, nucleus accumbens, amygdala, and neocortex. Belongs to the G-protein coupled receptor 1 family.