binding. similar to expressed protein [Oryza sativa (japonica cultivar-group)] (GB:ABA99493.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO69986.1); similar to hypothetical protein OsI_037933 [Oryza sativa (indica cultivar-group)] (GB:EAY83974.1); contains domain PTHR12830:SF5 (PTHR12830:SF5); contains domain PTHR12830 (PTHR12830)