Binds with low affinity to dsDNA and ssRNA, and with high affinity to dsRNA, with no detectable sequence specificity (By similarity) (PubMed:10488071). May bind to specific miRNA hairpins (By similarity). Forms a heteromeric complex with XPO5 and ILF3. Found in a nuclear export complex with XPO5, RAN, ILF3, ZNF346 and double-stranded RNA. Interacts with XPO5. Interacts with ILF3 in an RNA-independent manner (By similarity). Nuclear at steady state, primarily in the nucleolus. Shuttles between the nucleus and cytoplasm when associated with XPO5 (By similarity). Expressed in all tissues tested, including heart, brain, spleen, lung, liver, muscle, kidney and testis. Exogenous expression induced apoptosis. The zinc-finger domains are required for binding to dsRNA, and also for nuclear localization.