Ribonuclease H2 subunit A (RNASEH2A)

Catalytic subunit of RNase HII, an endonuclease that specifically degrades the RNA of RNA:DNA hybrids. Participates in DNA replication, possibly by mediating the elimination of lagging- strand Okazaki fragment RNA primers during DNA replication.

Mediates the excision of single ribonucleotides from DNA:RNA duplexes. .