Predicted to enable DNA binding activity. Predicted to be involved in DNA repair; DNA replication checkpoint signaling; and replication fork arrest. Predicted to act upstream of or within rhythmic process. Predicted to be located in nucleus. Predicted to be part of replication fork protection complex. Human ortholog(s) of this gene implicated in advanced sleep phase syndrome and alcohol use disorder. Orthologous to human TIMELESS (timeless circadian regulator).