Enables L-aspartate:2-oxoglutarate aminotransferase activity. Acts upstream of or within dicarboxylic acid metabolic process. Located in mitochondrion. Is expressed in several structures, including alimentary system; nervous system; respiratory system; sensory organ; and urinary system. Human ortholog(s) of this gene implicated in developmental and epileptic encephalopathy 82. Orthologous to human GOT2 (glutamic-oxaloacetic transaminase 2). [provided by Alliance of Genome Resources, Apr 2022]