May act predominantly to suppress BCHC1, which itself is a negative factor in protein storage vacuole (PSV) trafficking regulation and plant effector triggered immunity (ETI). Required for ETI, but not for cell death. Interacts (via protein kinase 2 domain) with BCHC1 (via PH-BEACH domain). Weakly expressed in the cotyledons of germinating seedlings. Restricted to the vascular tissues of cotyledons. Detected in root tips, apical meristem, young flower buds and receptacles. No visible phenotype. Accumulation of unprocessed 12S globulin in the seeds. Belongs to the protein kinase superfamily. Tyr protein kinase family. Truncated N-terminus.