Predicted to enable deoxyribonuclease inhibitor activity; protein domain specific binding activity; and protein folding chaperone. Predicted to be involved in chaperone-mediated protein folding; negative regulation of deoxyribonuclease activity; and negative regulation of execution phase of apoptosis. Predicted to act upstream of or within negative regulation of apoptotic DNA fragmentation; positive regulation of apoptotic process; and thymocyte apoptotic process. Located in nucleus. Orthologous to human DFFA (DNA fragmentation factor subunit alpha). [provided by Alliance of Genome Resources, Apr 2022]