Enables L-glutamate transmembrane transporter activity. Acts upstream of or within L-glutamate transmembrane transport and regulation of membrane potential. Located in Golgi apparatus; glutamatergic synapse; and membrane. Is integral component of presynaptic membrane. Is expressed in central nervous system and retina. Orthologous to human SLC1A6 (solute carrier family 1 member 6). [provided by Alliance of Genome Resources, Apr 2022]