Acts as a factor that allows the DNA to undergo a single round of replication per cell cycle. Required for DNA replication and cell proliferation (By similarity). May act as a component of the MCM complex which is the putative replicative helicase of the replication licensing system in eukaryotic cells. 597 DNA replication licensing factor MCM3 MCM3_ENTHI MEGHIHHITPRNITASILQQKVAVQGIITKSSQIRPLLQTAVQFCPLDYSTHARDLSHADVMVKLSSKTPDGKPLELEPGLSTYKDFQTLVVQEMPESAPTGQMPRSVIVILLDQLVDKGKPGDRVIINGTLKALAGPNHSSTFKVVLEAENINTLQSEGPELTEIDKENIKKVMKEENPINLFSKSIAPSIYGHSDVKKAILLMLVGATPKIRLRSRVRGDIHVMLCGDPSTAKSQLLRYVMSIAPLAVSTNGRGATGVGLTAAVVNDPDTNQRTLEAGAMVLADRGICCVDEFDKMSIEDRAAMHEVMEQQTVTVQKAGIHTGIKCKMSILAAANPSNGNYDFKKSPMENLYFPESLLSRFDLIFIILDSSTEELDRKLSQHVLKMHRHFDALTEQRGDDEVNVLALVDAEREKIGDAPVYQDSLCMKEKNYLLINSLKNMLLMLEISPTPSLSESASETIADAYVKLRENERLKRIKHNFKIKTLPITARALDSLIRLAEAHARIRGSDTIDEIDAQVAVQLILMKIWEGNITTHIARKVREYLTNELIAECKDVIQFDDILSICGIDKPTLMKILPQLSFGYDEDEEFVYKQN MCM3