Through its interaction with host SGS3, acts as a suppressor of RNA-mediated gene silencing, also known as post-transcriptional gene silencing (PTGS), a mechanism of plant viral defense that limits the accumulation of viral RNAs. Interacts with host SGS3. Accumulates in inclusion bodies in the cell periphery. May interact with the ER network from the perinuclear region out to the cell periphery (By similarity). Belongs to the geminiviridae protein AV2/V2 family.