Neutral ceramidase, or N-acylsphingosine amidohydrolase (non-lysosomal ceramidase) 2, is a human gene encoded by ASAH2. It may also be known as: Neutral ceramidase; N-CDase; NCDase; Acylsphingosine deacylase 2; BCDase; LCDase; N-acylsphingosine amidohydrolase 2; Non-lysosomal ceramidase; HNAC1. The encoded protein is an enzyme with an amino acid length of 780 and a mass of 85.5 kDa. Other isoforms may exist. Neutral ceramidase is a member of the Neutral ceramidase family. Homologs of this gene exist in other organisms, including: Mouse, Zebrafish.