Predicted to enable ATPase binding activity; Hsp70 protein binding activity; and protein-lysine N-methyltransferase activity. Predicted to be involved in peptidyl-lysine methylation. Predicted to act upstream of or within methylation. Predicted to be part of protein-containing complex. Predicted to be active in cytosol. Orthologous to human METTL21A (methyltransferase 21A, HSPA lysine). [provided by Alliance of Genome Resources, Apr 2022]