Enables gamma-aminobutyric acid transmembrane transporter activity. Involved in gamma-aminobutyric acid import. Located in axon; neuronal cell body; and plasma membrane. Is expressed in several structures, including heart; nervous system; respiratory system; sensory organ; and skeleton. Used to study schizophrenia. Orthologous to human SLC6A1 (solute carrier family 6 member 1). [provided by Alliance of Genome Resources, Apr 2022]