Secreted effector that possesses RNA silencing suppression activity by inhibiting the biogenesis of small RNAs in the host plant to promote enhanced susceptibility of host to the pathogen during infection (PubMed:23377181, PubMed:25902521, PubMed:30963588). Interferes with secondary siRNA production by associating with host nuclear protein PINP1 that acts as a regulator of the accumulation of both microRNAs and endogenous small interfering RNAs (PubMed:25902521). Interacts with host PINP1. The nuclear localization is required for this interaction. The RxLR-dEER motif acts to carry the protein into the host cell cytoplasm through binding to cell surface phosphatidylinositol-3-phosphate. The nuclear localization signal (NLS) is required for localization to the host nucleus and RNA silencing suppression activity. The single WY domain is required for binding to host PINP1 and subsequent RNA-silencing suppression activity, pathogenicity and perturbation of plant development. Belongs to the RxLR effector family.