This is an irregular verb. It follows the conjugation pattern of the verb buscar.
PresentPresente
Mi hermana se dedica a la enseñanza.
My sister works in teaching.
ImperfectPretérito imperfecto
Antes me dedicaba a vender coches.
I used to sell cars for a living.
FutureFuturo
Después del curso, se dedicará a la música.
After the course, he will devote himself to music.