The function of ZFP90 (ZFP90 zinc finger protein, Ensembl gene identifier ENSG00000184939) is as follows. Inhibits the transcriptional repressor activity of REST by inhibiting its binding to DNA, thereby derepressing transcription of REST target genes. . [Isoform 2]: Acts as a bridge between FOXP3 and the corepressor TRIM28, and is required for the transcriptional repressor activity of FOXP3 in regulatory T-cells (Treg). .