Predicted to enable tyrosine-tRNA ligase activity. Acts upstream of or within DNA damage response. Predicted to be located in nucleus. Is expressed in several structures, including digestive system; hematopoietic system; immature eye; mesoderm; and nervous system. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease dominant intermediate C. Orthologous to human YARS1 (tyrosyl-tRNA synthetase 1).