Possesses ribonuclease activity in vitro. Highly expressed in roots (PubMed:30572279). Expressed a low levels in ripe red fruits (PubMed:30572279). May cause an allergic reaction in human (PubMed:27086707). Binds to IgE of patients allergic to birch Bet v 1 (PubMed:27086707). Causes degranulation of basophils sensitized with IgE of patients allergic to birch Bet v 1 (PubMed:27086707). Belongs to the BetVI family.