Predicted to enable DNA binding activity; DNA-directed DNA polymerase activity; and chromatin binding activity. Predicted to be involved in lagging strand elongation; leading strand elongation; and mitotic DNA replication initiation. Predicted to be located in nucleus. Predicted to be part of alpha DNA polymerase:primase complex. Human ortholog(s) of this gene implicated in Van Esch-O'Driscoll syndrome and X-linked reticulate pigmentary disorder. Is an ortholog of human POLA1 (DNA polymerase alpha 1, catalytic subunit).