Effector that suppresses plant defense responses during the early stages of pathogen infection. Suppresses cell death induced by effectors and PAMPs in plant hosts (PubMed:21653195). Avh240 dimerizes and localizes at the plasma membrane to interfere with aspartic protease AP1 secretion, which presents an effective mechanism by which effector proteins suppress plant apoplastic immunity (PubMed:30703565). Homodimer (By similarity). Interacts with host soybean aspartic protease AP1 (PubMed:30703565). Plasma membrane localization is independent on self-dimerization but required for virulence. The RxLR-dEER motif acts to carry the protein into the host cell cytoplasm through binding to cell surface phosphatidylinositol-3-phosphate. The alpha 1 and alpha 2 helices (residues 58-108) are required for the localization the plasma membrane. Belongs to the RxLR effector family.