CBS domain-containing protein. similar to KING1 (SNF1-RELATED PROTEIN KINASE REGULATORY SUBUNIT GAMMA 1) [Arabidopsis thaliana] (TAIR:AT3G48530.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO41048.1); contains InterPro domain Cystathionine beta-synthase, core (InterPro:IPR000644)