Automated description from the Alliance of Genome Resources (Release 7.1.0)
Enables alpha2-adrenergic receptor activity. Involved in negative regulation of insulin secretion and presynaptic modulation of chemical synaptic transmission. Acts upstream of or within G protein-coupled receptor signaling pathway and fear response. Located in presynapse. Is active in dopaminergic synapse. Is expressed in several structures, including central nervous system; genitourinary system; gut; limb segment; and sensory organ. Human ortholog(s) of this gene implicated in several diseases, including alcohol dependence; attention deficit hyperactivity disorder; familial partial lipodystrophy; nicotine dependence; and type 2 diabetes mellitus. Orthologous to human ADRA2A (adrenoceptor alpha 2A).