Predicted to be involved in cellular response to radiation; recombinational repair; and regulation of cell cycle process. Predicted to act upstream of or within cellular response to DNA damage stimulus. Predicted to be active in chromosome and nucleus. Is expressed in midbrain ventricular layer; neural retina; olfactory cortex ventricular layer; renal cortex; and telencephalon ventricular layer. Orthologous to human RHNO1 (RAD9-HUS1-RAD1 interacting nuclear orphan 1). [provided by Alliance of Genome Resources, Apr 2022]