ZNF541 acts as a transcription regulator that is essential for male fertility and for the completion of meiotic prophase in spermatocytes. It regulates progression through the pachytene stage by activating the expression of genes involved in meiosis during spermatogenesis.

ZNF541 also maintains repression of pre-pachytene transcriptional programmes, including the genes responsible for meiotic double-strand break (DSB) formation, in pachytene spermatocytes. By suppressing aberrant DSB formation after mid-pachytene, it helps ensure that meiosis progresses. This dual role, activating some programmes and repressing others, positions the protein as a regulator of the timing of the meiotic transcriptional switch.

The human ZNF541 gene encodes a nuclear protein classified by HGNC in the C2H2-type zinc finger group and among Myb/SANT domain containing proteins. NCBI Gene summarises predicted functions that include transcription corepressor activity, involvement in male meiotic nuclear division and regulation of DNA-templated transcription, and association with a histone deacetylase complex and a transcription regulator complex. A mouse ortholog, Znf541, is recorded. These features make ZNF541 a useful subject for studies of spermatogenesis and transcriptional control in germ cells.