Secreted effector that activates ROS-mediated cell death in plant host and is essential for virulence (PubMed:30703564, PubMed:29029698). Plays a role in the transition from the biotrophic to necrotrophic stage (PubMed:30703564). Associates with and promotes the degradation of Nicotiana benthamiana BPA1, BPL1, BPL2, and BPL4 to disrupt ACD11 stabilization in a 26S proteasome-dependent manner (PubMed:30703564). Interacts with Nicotiana benthamiana ACD11, BPA1 (binding partner of ACD11), as well as BPA-like proteins BPL1, BPL2, BPL3 and BPL4. Expression is induced at 9-18 hours post-infiltration (hpi). The RxLR-dEER motif acts to carry the protein into the host cell cytoplasm through binding to cell surface phosphatidylinositol-3-phosphate. The disordered structure between residues 82 and 99 contributes to the effector function in cell death activation. Exhibits significantly reduced virulence with smaller lesions on Nicotiana benthamiana infected leaves. Belongs to the RxLR effector family.