Predicted to enable RNA ligase (ATP) activity and vinculin binding activity. Predicted to be involved in tRNA exon ligation utilizing 2',3' cyclic phosphate of 5'-exon as source of linkage phosphate. Predicted to act upstream of or within in utero embryonic development and placenta development. Predicted to be located in cytosol; endoplasmic reticulum membrane; and nucleus. Predicted to be part of tRNA-splicing ligase complex. Predicted to be active in nucleus. Orthologous to human RTCB (RNA 2',3'-cyclic phosphate and 5'-OH ligase). [provided by Alliance of Genome Resources, Apr 2022]