The product of this gene belongs to the phosphatase 2A
regulatory subunit B family. Protein phosphatase 2A is one of the
four major Ser/Thr phosphatases, and it is implicated in the
negative control of cell growth and division. It consists of a
common heteromeric core enzyme, which is composed of a catalytic
subunit and a constant regulatory subunit, that associates with a
variety of regulatory subunits. The B regulatory subunit might
modulate substrate selectivity and catalytic activity. This gene
encodes a delta isoform of the regulatory subunit B56 subfamily.
Alternatively spliced transcript variants encoding different
isoforms have been identified.