May play an essential role at the early stage of chromosomal DNA replication by coupling the polymerase alpha/primase complex to the cellular replication machinery. Required for the distribution of pie-1 in cell divsion. DNA polymerase alpha:primase is a four subunit enzyme complex, which is assembled throughout the cell cycle, and consists of the two DNA polymerase subunits A and B, and the DNA primase large and small subunits. Subunit B binds to subunit A (By similarity). Delayed cell divisions/cytokinesis. Dysfunctional development of intestinal and pharyngeal cells. Mislocalization of p-granules to the nuclei at the 4- and 12-cell embryonic growth stages. Loss of cell polarity during cell divisions. Belongs to the DNA polymerase alpha subunit B family.