Enables high-affinity glutamate transmembrane transporter activity. Involved in L-glutamate import across plasma membrane. Is integral component of plasma membrane. Part of membrane protein complex. Is active in parallel fiber to Purkinje cell synapse. Is integral component of postsynaptic membrane. Orthologous to human SLC1A6 (solute carrier family 1 member 6). [provided by Alliance of Genome Resources, Apr 2022]