Function: Host cellular restriction factor that may have antiviral activities against exogenous and endogenous viruses, as well as retrotransposons. May also play a role in the epigenetic regulation of gene expression through the process of active DNA demethylation.
Subunit: Homodimer. Interacts with human foamy virus protein Bet; this interaction does not induce APOBEC3C degradation, but prevents dimerization and incorporation into virion of the latter. Interacts with TRIB3 and EIF2C2/AGO2.