Predicted to enable protein serine/threonine kinase activator activity. Predicted to be involved in positive regulation of nuclear cell cycle DNA replication and regulation of cell cycle phase transition. Predicted to be located in nuclear body. Predicted to be part of Dbf4-dependent protein kinase complex. Predicted to be active in nucleus. Orthologous to human DBF4 (DBF4 zinc finger). [provided by Alliance of Genome Resources, Apr 2022]