Predicted to enable serine C-palmitoyltransferase activity. Predicted to be involved in ceramide biosynthetic process; regulation of fat cell apoptotic process; and sphingosine biosynthetic process. Predicted to act upstream of or within positive regulation of lipophagy; sphinganine biosynthetic process; and sphingomyelin biosynthetic process. Predicted to be located in endoplasmic reticulum membrane. Predicted to be part of SPOTS complex. Predicted to be active in endoplasmic reticulum. Human ortholog(s) of this gene implicated in hereditary sensory and autonomic neuropathy type 1A. Orthologous to human SPTLC1 (serine palmitoyltransferase long chain base subunit 1). [provided by Alliance of Genome Resources, Apr 2022]