The basics of my worlds oceanography is that there is one large ocean that covers one side of the world completely, and in-between the northern and southern continents on the other side of the world, there is an equatorial ocean that is atleast forty degrees from it's northern to southern end, around 20 degrees on each side of the equator. What this results in is a equatorial current that goes around the world. The ocean is wide enough that continental shelf's can't cause it to break off since the equatorial ocean on the land side takes up nearly half the continent. My question is simply, how would a current that circles the world at the equator effect the climate? What would the Climate of the land nearest the equator be?
Other essential features of the world I should mention are it's star: Trappist-1, the real world one. It's axial tilt, 0°. The fact that it is the 6th planet in Trappist-1. Also, it has a day-night cycle of roughly 24 hours because of literal magic. A "week" on this world is the amount of time it takes for that planet to go around the star, (roughly 12 earth days, the world is Trappist-1g) while a month (or year, depending on the length. I haven't accurately calculated it) is the amount of time it takes for all the planets in the system to be in the same position.
There are no circumpolar currents, though the poles themselves are water.