Yup, there it is:

Zinc is amphoteric and forms salts with alkalis. For example, Zinc dissolves in
hot concentrated caustic soda solution with the liberation of hydrogen gas and
the formation of sodium zincate.

Zn + 2 NaOH == Na2ZnO2 + H2

That's similar to my equation, but written differently. Same concept though ..
put zinc metal into lye, out bubbles hydrogen, zinc dissolves. - GWE