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. Suppresses the host RNA silencing by inhibiting adenosine kinase 2 (ADK2), a kinase involved in a general methylation pathway. Also suppresses the host basal defense by interacting with and inhibiting SNF1 kinase, a key regulator of cell metabolism implicated in innate antiviral defense. Determines pathogenicity (By similarity). Monomer. Suppress local silencing by interacting with and inactivating host adenosine kinase 2 (ADK2) in the cytoplasm. Interacts with and inhibits host SNF1 kinase (By similarity). The zinc finger is involved in PTGS suppression. Belongs to the geminiviridae transcriptional activator protein family.