The UW table in additional resources says ALT. There is also (admittedly old) research showing that ALT may be better than ALP for distinguishing b/w gallstone and non-gallstone pancreatitis. Predicting gallstone pancreatitis with laboratory parameters: a meta-analysis - PubMed
I would check amboss but i don’t have a subscription
AMBOSS says that ALT > 150 has a 95% PPV for gallstone pancreatitis. https://next.amboss.com/us/article/SS0y_2#Z2832e9c06290306df72198871a5479ee