To Catch
To Capture, To Seize, To Grab
transitive verb, ichidan verb
Remember how you learned 捕まる is "to be caught." Well this is the transitive version, so it means to catch or to capture. You (or someone else) is doing the catching, which is better than being the one who gets caught, I suppose.
The reading is also not the same as 捕まる. Sorry! It does have a similar reading to 取る though, which also has to do with grabbing things (like grabbing onto an idea, for example). You can use 取る as a jumping off point for remembering the reading of this word. You might also find it useful to think back to 捉える, which has to do with mentally "catching" or "grasping" things. You'll sometimes see this written as 捕らえる as well.
ご来光のしゅん間をカメラで捕えることができました。
I was able to capture the moment the sun rose with my camera.
私の猫は鼠を捕えることが得意なんです。
Catching mice is my cat’s specialty.