aromatase

synonym: estrogen synthetase
https://doi.org/10.1351/goldbook.10428

Enzyme (EC 1.14.14.1) of the cytochrome P450 superfamily that converts testosterone to 17\(\upbeta\!\)-estradiol and androstenedione to estrone.

Note: Inhibiting its action is an approach to the management of breast cancer.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 727 [Terms] [Paper]