Enables high-affinity glutamate transmembrane transporter activity. Involved in L-aspartate import across plasma membrane; L-glutamate import across plasma membrane; and malate-aspartate shuttle. Acts upstream of or within L-glutamate transmembrane transport and response to inorganic substance. Located in several cellular components, including basolateral plasma membrane; dendritic spine; and neuronal cell body. Is integral component of plasma membrane. Part of membrane protein complex. Human ortholog(s) of this gene implicated in episodic ataxia type 6. Orthologous to human SLC1A3 (solute carrier family 1 member 3). [provided by Alliance of Genome Resources, Apr 2022]