The viral dUTPase may play a role in lowering the dUTP concentration in natural infections to minimize misincorporation of deoxyuridine into the viral DNA and ensure the fidelity of genome replication. dUTP + H2O = diphosphate + dUMP + H(+) Homotrimer. Found in association with viral nucleoid. Expressed in the early phase of the viral replicative cycle. Belongs to the dUTPase family.