His other name of “Simon Cananaeus” simply adapts another Hebrew word for “zeal” and has nothing to do with the town of Cana.
St Jude, Apostle Jude, also called Thaddaeus, is the apostle who at the Last Supper asked the Lord why he showed himself only to the disciples and not to the world. For many centuries he was scarcely venerated because people confused him with Judas Iscariot. He is the patron saint of lost and desperate causes.
Their joint feast day is celebrated on October 28th.