Enables hepoxilin A3 synthase activity. Involved in several processes, including establishment of skin barrier; long-chain fatty acid metabolic process; and peroxisome proliferator activated receptor signaling pathway. Predicted to be located in cytoplasm. Is expressed in epidermis. Human ortholog(s) of this gene implicated in autosomal recessive congenital ichthyosis 1 and autosomal recessive congenital ichthyosis 3. Orthologous to human ALOXE3 (arachidonate lipoxygenase 3). [provided by Alliance of Genome Resources, Apr 2022]