Has a role in regulating DNA replication complexes. Acts as a regulator of post DNA replication initiation. Associates with chromatin during G1 and S phases of mitosis. Required for the transcriptional repression of the outer repeats of the centromeric region. Acts as a polymerase alpha replication accessory factor and is important for S-phase DNA damage survival. Plays a role in lagging-strand synthesis and Ozaki fragment processing, in addition to DNA repair. Interacts with pof3 and pol1.