Involved in the control of flavonoid biosynthesis in fruits, probably by binding directly to natural flavonoids (By similarity). Binds the natural flavonoid myricetin with affinities in the low micromolar range (PubMed:24133217). Monomer (PubMed:28656626). Interacts with AP (PubMed:28656626). Highly expressed in ripe red fruits (PubMed:19969523, PubMed:28574483). Expressed in roots and white fruits (PubMed:19969523). Expressed at low levels in open flowers (PubMed:19969523). 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.