Enables lysozyme activity. Involved in defense response to Gram-negative bacterium and defense response to Gram-positive bacterium. Predicted to be located in several cellular components, including Golgi cis cisterna; cytoplasmic vesicle; and rough endoplasmic reticulum lumen. Is expressed in several structures, including hematopoietic system; liver; mesothelium; small intestine; and yolk sac. Human ortholog(s) of this gene implicated in familial visceral amyloidosis. Orthologous to human LYZ (lysozyme). [provided by Alliance of Genome Resources, Apr 2022]