Enables L-tyrosine:2-oxoglutarate aminotransferase activity and amino acid binding activity. Involved in several processes, including response to dexamethasone; response to mercury ion; and response to oxidative stress. Located in mitochondrion. Human ortholog(s) of this gene implicated in tyrosinemia and tyrosinemia type II. Orthologous to human TAT (tyrosine aminotransferase). [provided by Alliance of Genome Resources, Apr 2022]