Predicted to enable tRNA dimethylallyltransferase activity. Predicted to be involved in tRNA modification. Predicted to be active in mitochondrion. Human ortholog(s) of this gene implicated in combined oxidative phosphorylation deficiency 35. Orthologous to human TRIT1 (tRNA isopentenyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]