Enables hepoxilin A3 synthase activity; hepoxilin-epoxide hydrolase activity; and oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen. Involved in fatty acid metabolic process and positive regulation of heterotypic cell-cell adhesion. Located in cytosol. Biomarker of brain ischemia; congestive heart failure; and glomerulonephritis. Orthologous to human ALOX15 (arachidonate 15-lipoxygenase). [provided by Alliance of Genome Resources, Apr 2022]