DNA polymerase involved in damage-induced mutagenesis and translesion synthesis (TLS). It is not the major replicative DNA polymerase. Does not appear to be essential for chromosomal replication. May be involved in generating antibiotic resistance. a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) = diphosphate + DNA(n+1) Up-regulated in response to all forms of DNA damage. LexA-regulated. Belongs to the DNA polymerase type-C family. DnaE2 subfamily. Truncated N-terminus.