Wee Jas started off as a Lawful Neutral deity, changed to having Evil tendencies, but, with 5e, seems to have retuned to her earlier philosophies. I have three separate 'churches' spread around my campaign world: One with strongly LE philosophies, that is a hangover from earlier time, and two others that are more palatable in the 'modern' world.

Close to the Magic College in Twabeck, the priests here revere Wee Jas as a deity of magic (LN) Found in The Strongholds and Galinia, where they try to overthrow the Wangate Necromancers.

Found in the city states of Sakhar, these semi-independent cults oversee the Pyramid-Tombs of the city's previous rulers, which said to house the local City-Deity. However, most northern scholar believe they house numerous high-level undead. (Ln(E))

Left over from centuries before, pockets of necromantic priests and mages still survive in Galinia - and, perhaps, other states.