Can anyone be a pastor of a church?

You dont need a degree to be a pastor. But technically, it depends on where you want to be a pastor. Every church has their own criteria to determine if someone is qualified to lead, and for some of them, a degree may be part of that.

Can I be a pastor without going to seminary?

Put simply, one does not have to go to seminary to be a faithful pastor. After all, seminary training—as we know it today—is not explicitly in the Bible. There have been faithful pastors for centuries who had no formal training. For many throughout church history, such training was simply not an option.