DNA binding. Identical to CRS2-associated factor 1, mitochondrial precursor [Arabidopsis Thaliana] (GB:Q8VYD9;GB:O65549;GB:Q94B45); similar to unknown protein [Arabidopsis thaliana] (TAIR:AT5G54890.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO24450.1); contains InterPro domain CRS1/YhbY (InterPro:IPR001890)