nucleic acid binding. similar to 3'-5' exonuclease/ nucleic acid binding [Arabidopsis thaliana] (TAIR:AT3G12410.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO18256.1); contains InterPro domain Polynucleotidyl transferase, Ribonuclease H fold; (InterPro:IPR012337)