Predicted to enable aminoacyl-tRNA editing activity; protein homodimerization activity; and threonine-tRNA ligase activity. Predicted to be involved in threonyl-tRNA aminoacylation. Predicted to act upstream of or within translation. Located in mitochondrion. Human ortholog(s) of this gene implicated in combined oxidative phosphorylation deficiency 21. Orthologous to human TARS2 (threonyl-tRNA synthetase 2, mitochondrial). [provided by Alliance of Genome Resources, Apr 2022]