Predicted to enable protein heterodimerization activity; protein homodimerization activity; and queuine tRNA-ribosyltransferase activity. Predicted to be involved in tRNA-guanine transglycosylation. Predicted to be located in cytoplasm and nucleus. Predicted to be part of protein-containing complex. Predicted to colocalize with mitochondrion. Orthologous to human QTRT1 (queuine tRNA-ribosyltransferase catalytic subunit 1). [provided by Alliance of Genome Resources, Apr 2022]